Overview of Primary Product
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12
4. Close all supply and return manifold ports by
turning the valves clockwise
D
,
G
and
H
.
(Remember to pull up the lock ring.)
5. Attach the fill hose to the connection on the
supply manifold (bottom)
F
, and the drain hose
to the connection on the return manifold (top)
E
.
Note: An automatic fill or hard-plumb port
may also be used. The hard-plumb port can
be located directly behind the return manifold
(at the connection point below the boiler).
For further instructions, refer to the Hard-plumb
Port instructions in Section 11: Customization
Options.
6. Connect the other end of the fill hose to a hose
bib to fill the system with water or to a transfer
pump to fill with pre-mixed glycol solution.
Place the other end of the drain hose in a
five-gallon bucket (minimum).
7. Open both supply and return valves for the
first loop by turning the valves counterclockwise
G
and
H
.
8. Open the hose valve on the return manifold (top)
E
to allow air to escape once the purging
process begins.
Note: First time opening the valve, the O-ring
might be stuck. Wiggle the valve knob while
pulling to help release the seal.
9. Open the hose valve on the supply manifold
(bottom)
F
. The water or water/glycol mix should
begin to flow into the first loop. (This can be seen
on the supply manifold flow meter.) Air will also be
coming out of the drain hose.
Note: First time opening the valve, the O-ring
might be stuck. Wiggle the valve knob while
pulling to help release the seal.
10. Fluid should begin to come out of the drain hose
(as well as a lot of air at first). Monitor the drain
hose for air bubbles in the bucket. Once the air
bubbles are completely gone, run fluid for one
more minute (to make sure all the trapped air is
out of the tubing).
Expansion Tank
Boiler
Boiler Control
Temperature and Pressure Gauge
Temperature and Pressure Relief Valve
Return Manifold
Circulating Pump
Supply Manifold
Automatic Air Vent
Isolation Valves
Expansion Tank
A
B
C
E
F
G D D D
D
D
D
D
D
H
I
Figure 6-2: Components for Filling and Purging Procedure